* Use Mail-in-a-Box driver
We're using the user's own credentials to authenticate themselves.
There are some issues if we release as-is:
* Only usable if the user in question is an admin
* Cannot be used if the user has 2FA enabled
* daemon: Add selective gatekeeper
* Allows us to give access to features for logged in, non-admin users
* Allow non-admins to change their own password
* Begin password management self service, frontend
* Allow all users to enable 2FA
* Password change front-end form
* Self password change front-end functionality
* Force logout after successful password change
* Clear fields after successful password change, also fix error modal
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